What are the symptoms of unstable idle speed in the Trumpchi GS5?
3 Answers
The symptoms of unstable idle speed in the Trumpchi GS5 include: 1. Engine shaking during idle operation; 2. Uneven RPM, etc. The causes of unstable idle speed may be due to a clogged idle air orifice, malfunctioning idle speed control device, weak spark in individual cylinder spark plugs, poor sealing of certain valves, air leakage in the intake manifold, incorrect ignition timing (either too early or too late), or improper idle speed adjustment. The Trumpchi GS5 is positioned as an SUV model, with body dimensions of 4695mm in length, 1885mm in width, and 1700mm in height, and a wheelbase of 2710mm. In terms of interior, the Trumpchi GS5 features two design styles—black and brown—highlighting a fashionable taste. The dashboard and door trim panels wrapped in soft materials are finely crafted with a delicate touch.
My Trumpchi GS5 has been experiencing severe steering wheel vibrations when idling at red lights recently, with the entire body trembling as if shivering. The tachometer needle keeps dancing erratically between 600-900 rpm. The most annoying part is this shaking is completely irregular – sometimes it feels like suddenly activating a phone vibration mode, making even the seat buzz. Last time when waiting at a red light with AC on, the engine suddenly stalled, scaring me into restarting immediately. This issue seriously affects stop-and-go traffic experience, making me feel the engine might fail anytime. A friend suggested it could be excessive carbon buildup clogging the throttle body, or spark plugs needing replacement. He also recommended checking the ignition coils, as aging coils can cause erratic idling. Leaving it unfixed might eventually damage the engine.
Once when driving the Trumpchi GS5 off the highway and waiting at a traffic light, I suddenly noticed the tachometer needle jumping erratically like a muscle spasm. The engine vibration was clearly noticeable inside the car, especially with intense steering wheel shaking. Occasionally, I could hear the engine's breathing sound fluctuating between loud and soft, with the most obvious unstable RPM occurring during cold starts. Worried about cooling issues, I specifically checked the coolant temperature gauge which showed normal readings. Fuel consumption suddenly increased slightly during this period. If the shaking becomes even more exaggerated when in neutral gear, it basically confirms clogged fuel injectors. The situation improved after I cleaned the carbon deposits from the throttle body. Early treatment is recommended, otherwise severe cases might damage the catalytic converter.
